<?hh // strict
/**
 * Copyright (c) 2014, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the "hack" directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 */

interface A {}

<<__ConsistentConstruct>>
trait X implements A {
  public function foo(): A {
    return new static();
  }
}

class Y {
  use X;

  public function buildAnObjectAFromTrait(): A {
    return $this->foo();
  }
}
